When to Use What Case
Nom- naming things/subject (что/кто/это)
Prep- where/about (где/о чём)
Gen- possession/of, where from (откуда)
Acc- direct object, direction after verbs of motion (where to [куда])
Dat- indirect object (кому)
Instr- instrument that performs action/with (с кем)
This list is not comprehensive. I’ve included some of the questions that can be used with them, but none of the prepositions. There is also ways to use the cases that are not included, I do not know all of them. Also, I have neglected putting examples; I will come up with some eventually.












